Food Markets with Live Birds as Source of Avian Influenza
Figure 1. Detection of avian influenza virus H5N1 from an animal cage for geese by reverse transcription–PCR. Viral RNA was extracted from the sample and amplified by using 3 pairs of primers specific for membrane (M), hemagglutinin (H5), and neuraminidase (N1) virus genes. Sample buffer was used as a negative control, and viral RNA from a human H5N1 virus strain (A/Hong Kong/486/97) was included as a positive control. First lane, molecular mass ladder.